
/**************************************************************************
 *
 * Copyright 2011 Jose Fonseca
 * Copyright 2010 VMware, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 **************************************************************************/


#include <string.h>
#include <limits.h> // for CHAR_MAX
#include <getopt.h>
#ifndef _WIN32
#include <unistd.h> // for isatty()
#endif

#include <memory>
#include <fstream>
#include <string>

#include "cxx_compat.hpp" // for std::to_string, std::make_unique

#include "cli.hpp"
#include "cli_pager.hpp"

#include "trace_parser.hpp"
#include "trace_option.hpp"

static const char *synopsis = "Print given trace file(s) information.";

static void
usage(void)
{
    std::cout
        << "usage: apitrace info [OPTIONS] TRACE_FILE...\n"
        << synopsis << "\n"
        "\n"
        "    -h, --help        show this help message and exit\n"
        "    --json            output trace file information in JSON format\n"
        "\n"
    ;
}

enum {
    JSON_OPT = CHAR_MAX + 1,
};

const static char *
shortOptions = "h";

const static struct option
longOptions[] = {
    {"help", no_argument, 0, 'h'},
    {"json", no_argument, 0, JSON_OPT},
    {0, 0, 0, 0}
};

static const char*
getApiName(int api) {
  if (api < trace::API_UNKNOWN || api >= trace::API_MAX)
    api = trace::API_UNKNOWN;
  return trace::API_NAMES[api];
}

static int
command(int argc, char *argv[])
{
    bool json = false;
    int opt;
    while ((opt = getopt_long(argc, argv, shortOptions, longOptions, NULL)) != -1) {
        switch (opt) {
        case 'h':
            usage();
            return 0;
        case JSON_OPT:
            json = true;
            break;
        default:
            std::cerr << "error: unexpected option `" << (char)opt << "`\n";
            usage();
            return 1;
        }
    }

    for (int i = optind; i < argc; ++i) {
        unsigned long framesCount = 0;
        trace::API api = trace::API_UNKNOWN;
        trace::Parser p;

        if (!p.open(argv[i])) {
            return 1;
        }

        trace::Call *call;
        while ((call = p.parse_call())) {
            if (api == trace::API_UNKNOWN && p.api != trace::API_UNKNOWN)
              api = p.api;
            if (call->flags & trace::CALL_FLAG_END_FRAME)
              ++framesCount;
            delete call;
        }

        if (json) {
            std::cout <<
                "{" <<
                    "\"FileName\":\"" << argv[i] << "\"," <<
                    "\"ContainerVersion\":" << p.getVersion() << "," <<
                    "\"API\":\"" << getApiName(api) << "\"," <<
                    "\"FramesCount\":" << framesCount << "" <<
                "}" << std::endl;
        } else {
            std::cout <<
                std::endl <<
                "FileName: " << argv[i] << std::endl <<
                "ContainerVersion: " << p.getVersion() << std::endl <<
                "API: " << getApiName(api) << std::endl <<
                "FramesCount: " << framesCount << std::endl <<
                std::endl;
        }
    }

    return 0;
}

const Command info_command = {
    "info",
    synopsis,
    usage,
    command
};
